A Rapid Way To Scroll Numbers; Program Review & Repeat Firing; Delay; Power Failures - Orton Sentry Xpress Sentry Xpress 4.0 Manual

A Rapid Way to
Scroll Numbers
During programming, hold an arrow key down several
seconds, and numbers will begin to scroll rapidly. Ordi-
narily, you would press
to lower it. But sometimes it is faster to press
the opposite key. This is because the numbers scroll below
0000 to the highest number, and vice versa. Examples:
To program a 99.59 hour Hold when the display shows
00.00, press the
To program a FULL rate when the display shows 0000,
press the
To program a temperature of 200°F when the display
shows 1800°F, press the
pressing the
Program Review &
Repeat Firing
Program Review lets you check that the information
programmed into the controller is correct. Program Review
shows the values for the program in active memory. Use
Program Review from
fired.
key. The rate, temperature, hold, etc. will
display one after the other. Firing will continue.
Press the
ture, hold, etc.,
will appear, and the kiln will begin firing the program
just reviewed.

Delay

Delay is a count-down timer. The kiln begins firing when
the timer runs out of time. Use Delay to fit a firing into your
schedule.
CAUTION: For safety, do not leave the kiln alone dur-
ing a delay or a firing. We cannot guarantee your kiln
against overfiring even though the controller is auto-
matic.
After you have entered a program and the control-
ler is ready to begin firing,
Press the
pear, alternating with
Use the arrow keys to enter delay time. (The deci-
mal separates hours and minutes. Example: 1 hour
and 10 minutes = 01.10.) Then press
will appear, alternating with time left until
the firing begins.
4 Single-Speed/Ramp-Hold
to raise a number and
once.
once.
. That is faster than
.
to repeat the last program you
Press the
key. After rate, tempera-
will appear. Press
will appear.
key once. will ap-
.
Note: Press
begin the firing. The maximum delay is 99 hours and
59 minutes.

Power Failures

After a power failure, the controller will continue firing
provided that:
The kiln temperature is above 212°F / 100°C when the
power comes back on.
The temperature dropped no more than 72°F / 40°C
while the power was off.
Power Failure Messages (see page 12)
the kiln cooled past the target temperature while the power
was off.
The power failed during firing and kiln tempera-
ture was below 212°F / 100°C when the power came back on.
dropped more than 72°F / 40°C by the time the power came
back on.
CPLt Message: Firing
Completed
When the firing has success-
fully completed, the Sentry
Xpress will shut off power to
the elements and sound an
alarm for 30 seconds. Then three messages will cycle one af-
ter the other:
.
Firing time in hours and minutes
The current kiln temperature
Press
Thunder Storms and
Power Surges
Unplug the kiln or disconnect the power when the kiln is
not in use, especially during thunder storms and in areas
with frequent power surges. If the kiln is part way through a
firing when a storm begins, it is probably okay to continue
the firing with close supervision. Do not leave the kiln unat-
tended.

Canceling a New Program

If you do not touch the keys for one minute during pro-
gramming, the controller will go back to the
twice.
The controller will also discard the program you were en-
tering and will retain the previous program in memory.
This is useful if you change your mind during program-
ming and decide to keep the previous program. Instead of
completing the new program, wait a minute and let the con-
troller return to
during delay to end the delay and
The power failed during a cooling segment, and
The power failed during firing and temperature
(complete)
to return to
.
.
display.